title: Factors influencing the occurence of nosocomial bloodstream infections observed in thoracic and cardiosurgical postoperative care units.
abstract: BACKGROUND
  The aim of this study was to analyse the epidemiology and aetiology of laboratoryconfirmed bloodstream infections (LC-BSI) and central line-associated bloodstream infections (CLABSI) after pulmonary and coronary surgery, in postoperative intensive care units in 2009.
  
  
  METHODS
  Sources of infections were identified by the hospital Infection Control Team in cooperation with ITU personnel using the CDC definitions.
  
  
  RESULTS
  A total of 37 LC-BSI and 21 CLA-BSI cases in 3.096 patients were detected. Central line device utilization ratio was 0.50. The total cumulative LC-BSI incidence rate was 1.2% and CLA-BSI rate 8.7 per 1,000 central line days. The most common causes of LC-BSI were Gram-positive cocci (Staphylococcus aureus - 5.9%, CNS - 50.0%, Enterococcus faecium - 5.9%).
  
  
  CONCLUSIONS
  We found that in those units in which surveillance of CLA-BSI had been conducted since 2002, BSI incidence rates were higher than those reported in the NHSN programme.
authors.affiliation: Department of Bacteriology, Parasitology and Ecology of Microorganisms, Collegium Medicum, Jagiellonian University in Kraków. mbmach@cyf-kr.edu.pl
authors.forename: Jadwiga
authors.initials: J
authors.lastname: Wójkowska-Mach
authors.forename: Magda
authors.initials: M
authors.lastname: Baran
authors.forename: Rafał
authors.initials: R
authors.lastname: Drwiła
authors.forename: Mirosław
authors.initials: M
authors.lastname: Ziętkiewicz
authors.forename: Ewelina
authors.initials: E
authors.lastname: Foryciarz
authors.forename: Edyta
authors.initials: E
authors.lastname: Synowiec
authors.forename: Dorota
authors.initials: D
authors.lastname: Romaniszyn
authors.forename: Piotr B
authors.initials: PB
authors.lastname: Heczko
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006348:Cardiac Surgical Procedures / Q000379:methods; D055499:Catheter-Related Infections / Q000453:epidemiology* / Q000382:microbiology; D002405:Catheterization, Central Venous / Q000009:adverse effects; D003428:Cross Infection / Q000453:epidemiology* / Q000382:microbiology; D005260:Female; D006801:Humans; D015994:Incidence; D007362:Intensive Care Units; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology* / Q000382:microbiology; D018805:Sepsis / Q000453:epidemiology* / Q000209:etiology / Q000382:microbiology; D019616:Thoracic Surgical Procedures / Q000379:methods